diff options
Diffstat (limited to 'intern/cycles/util/transform.cpp')
| -rw-r--r-- | intern/cycles/util/transform.cpp | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/intern/cycles/util/transform.cpp b/intern/cycles/util/transform.cpp index 0bf5de57a20..cb985c65dd8 100644 --- a/intern/cycles/util/transform.cpp +++ b/intern/cycles/util/transform.cpp @@ -11,7 +11,7 @@ CCL_NAMESPACE_BEGIN /* Transform Inverse */ -static bool transform_matrix4_gj_inverse(float R[][4], float M[][4]) +static bool projection_matrix4_inverse(float R[][4], float M[][4]) { /* SPDX-License-Identifier: BSD-3-Clause * Adapted from code: @@ -98,16 +98,8 @@ ProjectionTransform projection_inverse(const ProjectionTransform &tfm) memcpy(R, &tfmR, sizeof(R)); memcpy(M, &tfm, sizeof(M)); - if (UNLIKELY(!transform_matrix4_gj_inverse(R, M))) { - /* matrix is degenerate (e.g. 0 scale on some axis), ideally we should - * never be in this situation, but try to invert it anyway with tweak */ - M[0][0] += 1e-8f; - M[1][1] += 1e-8f; - M[2][2] += 1e-8f; - - if (UNLIKELY(!transform_matrix4_gj_inverse(R, M))) { - return projection_identity(); - } + if (UNLIKELY(!projection_matrix4_inverse(R, M))) { + return projection_identity(); } memcpy(&tfmR, R, sizeof(R)); @@ -115,16 +107,9 @@ ProjectionTransform projection_inverse(const ProjectionTransform &tfm) return tfmR; } -Transform transform_inverse(const Transform &tfm) -{ - ProjectionTransform projection(tfm); - return projection_to_transform(projection_inverse(projection)); -} - Transform transform_transposed_inverse(const Transform &tfm) { - ProjectionTransform projection(tfm); - ProjectionTransform iprojection = projection_inverse(projection); + ProjectionTransform iprojection(transform_inverse(tfm)); return projection_to_transform(projection_transpose(iprojection)); } |